<template>
    <div>
       
        <!-- 面包屑 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 面包屑 -->

        <!-- 卡片试图 -->
        <el-card class="box-card">
           <el-row :gutter="20">
               <el-col :span="7">
                    <el-input placeholder="请输入内容" @clear="getUserList" class="input-with-select" v-model="queryinfo.query" clearable>
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
               </el-col>
               <el-col :span="4">
                   <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
               </el-col>
           </el-row>

            <!-- 用户列表 -->
        <el-table :data="userlist" style="width: 100%" border stripe>
            <el-table-column type="index" label="#"></el-table-column>
            <el-table-column prop="username" label="姓名"></el-table-column>
            <el-table-column prop="email" label="邮箱" ></el-table-column>
            <el-table-column prop="mobile" label="电话" ></el-table-column>
            <el-table-column prop="role_name" label="角色" ></el-table-column>
            <el-table-column label="状态">
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                    </el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作" >
                <template slot-scope="scope">
                <!-- 修改按钮 -->
                <el-button type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
                <!-- 删除按钮 -->
                <el-button type="danger"  icon="el-icon-delete" @click="removeUserById(scope.row.id)"></el-button>
                <!-- 分配角色按钮 -->               
                    <el-tooltip effect="dark" content="分配角色" placement="top-start" :enterable="false">
                    <el-button type="warning" icon="el-icon-setting" @click="setRole(scope.row)"></el-button>
                    </el-tooltip>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
            @size-change="handiesizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryinfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryinfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="totalpage">
        </el-pagination>
        
        </el-card>
        <!-- 卡片试图 -->


        <!-- 添加对话框 -->
            <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close="addDialogClosed"
            >
            <!-- 内容 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>

            
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>

           
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>

            
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible=false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
            
        </el-dialog>
       <!-- 添加对话框 -->

        <!-- 修改对话框 -->
            <el-dialog
            title="修改用户"
            :visible.sync="showEditDialogVisible"
            width="50%"
            @close="editDialogClosed"
            >
            <!-- 内容 -->
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>

                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>

            
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="showEditDialogVisible=false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
            
        </el-dialog>
       <!-- 修改对话框 -->

        <!-- 分配角色的对话框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%"
            @close="setRoleDialogClosed"
            >
            
            <!-- 内容 -->
            <div>
                <p>当前的用户：{{userlnfo.username}}</p>
                <p>当前的角色：{{userlnfo.role_name}}</p>
                <p>分配新角色：
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                    v-for="item in rolesList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                    </el-option>
                </el-select>
                </p>
            </div>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible=false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
            
        </el-dialog>
        <!-- 分配角色的对话框 -->

    </div>
</template>

<script>
export default {
    data(){
            //验证邮箱的规则
            var checkEmail=(rule,value,cb)=>{
                //验证邮箱的正则表达式
                const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

                if(regEmail.test(value)){
                    return cb()
                }
                cb(new Error('请输入合法的邮箱'))
            }

            //验证手机号的规则
            var checkMobile=(rule,value,cb)=>{
                //验证手机号的正则表达式
                const regMobile=/^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

                if(regMobile.test(value)){
                    return cb()
                }
                cb(new Error('请输入合法的手机号'))

            }


        return{
            //获取用户列表的参数对象
            queryinfo:{
                query:'',
                //当前的页数
                pagenum:1,
                //当前每页显示多少条数据
                pagesize:10
            },
            userlist:[],
            totalpage:0,
            //控制添加对话框
            addDialogVisible:false,
            //添加用户的数据对象
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            //添加的验证规则对象
            addFormRules:{
                username:[{required:true,message:'请输入用户名',trigger:'blur'},
                         {min:3,max:10,message:'用户名的长度在3~10个字符之间',trigger:'blur'}
                         ],
                password:[{required:true,message:'请输入密码',trigger:'blur'},
                         {min:6,max:15,message:'用户名的长度在6~15个字符之间',trigger:'blur'}
                         ],
                   email:[{required:true,message:'请输入邮箱',trigger:'blur'},
                          {validator:checkEmail,trigger:'blur'}
                         ],
                  mobile:[{required:true,message:'请输入手机号',trigger:'blur'},
                          {validator:checkMobile,trigger:'blur'}
                         ]

            },
            //控制修改对话框
            showEditDialogVisible:false,
            //查询到的用户数据对象
            editForm:{
            },
            //修改的验证规则对象
            editFormRules:{
                 email:[{required:true,message:'请输入邮箱',trigger:'blur'},
                        {validator:checkEmail,trigger:'blur'}
                       ],
                mobile:[{required:true,message:'请输入手机号',trigger:'blur'},
                          {validator:checkMobile,trigger:'blur'}
                       ]
            },
            //控制分配角色对话框
            setRoleDialogVisible:false,
            //需要被分配角色的用户信息
            userlnfo:{},
            //所有角色的数据列表
            rolesList:[],
            //已选中的角色id值
            selectedRoleId:''
            
        }
    },
    methods:{
      async getUserList(){
        const {data:res} = await this.$http.get('users',{params:this.queryinfo})
        if(res.meta.status!=200){
            return this.$message.console.error('获取用户列表失败');
        }
        this.userlist=res.data.users
        this.totalpage=res.data.totalpage
        console.log(res)    
        },
        //监听 pagination 改变的事件
        handiesizeChange(newSize){
            this.queryinfo.pagesize=newSize
            this.getUserList();
            console.log(newSize);
        },
        //监听 页码值 改变的事件
        handleCurrentChange(nawPage){
            console.log(nawPage);
            this.queryinfo.pagenum=nawPage
            this.getUserList();
        },
        //监听switch 开关状态的改变
        async userStateChange(userinfo){
           
         const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if(res.meta.status!==200){
            userinfo.mg_state=!userinfo.mg_state
            return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功')
         console.log(userinfo);
        },
        //监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮，添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
               if(!valid){return}
               const {data:res}= await this.$http.post('users',this.addForm)
               if(res.meta.status!==201){
                   this.$message.error('添加用户失败')
               }
               this.$message.success('添加用户成功')
               //隐藏添加对话框
               this.addDialogVisible=false
               //重新获取用户列表的数据
               this.getUserList();

            })
        },
        //展示编辑用户的对话框
       async showEditDialog(id){
                            
                const {data:res} = await this.$http.get(`users/${id}`)
                
                this.editForm=res.data
                this.showEditDialogVisible=true  
                console.log(this.editForm)
        },
        //监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        //修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                if(!valid){return}
                //发起修改用户信息的数据请求
                const {data:res} = await this.$http.put('users/'+this.editForm.id,{email:this.editForm.email,mobile:this.editForm.mobile})
                if(res.meta.status !==200){
                    return this.$message.error('更新用户信息失败')
                }
                this.$message.success('更新用户信息成功')
                //隐藏修改对话框
               this.showEditDialogVisible=false
               //重新获取用户列表的数据
               this.getUserList();

            })
        },
        //根据id删除
       async removeUserById(id){
           //弹框询问用户是否删除
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=> err)
        //如果用户点了确定删除，则返回值为字符串 confirm
        //如果用户点了取消删除，则返回值为字符串 cancel
        console.log(confirmResult);
        if(confirmResult !="confirm"){
            return this.$message.info('已取消删除')
        }
        const {data:res}= await this.$http.delete(`users/${id}`)
        if(res.meta.status!==200){
            return this.$message.error('删除用户失败')
        }
            this.$message.success('删除用户成功')
            //重新获取用户列表的数据
               this.getUserList();
        },
        //展示分配角色的对话框
        async setRole(userlnfo){
            this.userlnfo=userlnfo

            //在展示对话框之前，获取所有角色的列表
           const {data:res}=await this.$http.get('roles')
            if(res.meta.status!==200){
                return this.$message.error('获取角色列表失败')
            }

            this.rolesList=res.data

            console.log(this.rolesList)

            this.setRoleDialogVisible=true
        },
        //点击按钮分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色')
            }

           const {data:res}=await this.$http.put(`users/${this.userlnfo.id}/role`,{rid:this.selectedRoleId})

            if(res.meta.status!==200){
                return this.$message.error('更新角色失败')
            }

            this.$message.success('更新角色成功')
            this.getUserList()
            this.setRoleDialogVisible=false
        },
        //监听分配角色对话框的关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId=''
            this.userlnfo={}
        }

    },
    created(){
        this.getUserList()
    }



}
</script>

<style lang="less" scoped>
.el-breadcrumb{
    margin-bottom: 15px;
    font-size: 12px;
}
.el-card{
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.15) !important;
}
.el-table{
    margin-top: 15px;
    font-size: 12px;
}


</style>